APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Smooth muscle, found in the walls of the hollow internal organs such as blood vessels, the gastrointestinal tract, bladder, and uterus, is under control of the autonomic nervous system. Smooth muscle cannot be controlled consciously and thus acts involuntarily.

Detailed explanation-2: -Smooth muscle – located in various internal structures including the digestive tract, uterus and blood vessels such as arteries.

Detailed explanation-3: -The function of the involuntary muscles is to cause variations in shape or inner diameter of the organs (movement of substances inside the body, favoring possible passageways or the exclusion of contents). Their contraction is regulated by the autonomic nervous system. An example of an involuntary muscle is the heart.

Detailed explanation-4: -At a cellular level, smooth muscle can be described as an involuntary, non-striated muscle. Smooth muscle consists of thick and thin filaments that are not arranged into sarcomeres giving it a non-striated pattern.

Detailed explanation-5: -Smooth muscle: Smooth muscle makes up your organs, blood vessels, digestive tract, skin and other areas. Smooth muscles are involuntary, too. So, your autonomic nervous system controls them as well.